Lasting-machine



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No. 381,019. l A 'Patented Api.'y 1o, n'

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n tion is also embodied; and in Figs. 5 and 6 I l UNITEDv STATES .PATENT Ormes.. l

CHARLES H. KELLEY, 0E BOSTON, .ASsIG'NoE To CHARLES B. LANCASTER,

`0E NEwrroN, MAsSAcHUSErTS. y y

tAsTlkrie.-MACHINs.

SPECIFICATION forming partici' Letters Patent No. 381,019, datedpril 11888.

yApplication led November 25, 188i. Serial No. 256,048. (No model.)

.To @ZZ wiz/0m itjnay'concern."

A Be it known that I, CHARLES H. KELLEY, of Boston, in the county of Suffolk and State of Massachusetts, a citizen of the United States, vhave invented certain new and useful Improvements in Lasting-Machines, of which the following is a specification.

My invention relates to improvements in that class of lasting-machines in whichthe upper-leather is stretched and folded or lasted ov'erand upon-the inner sole by mechanical appliances; and it has for its object to improve the construction and operation -of such Ymavchines.

In the accompanying'drawings I have rep-. resented at Figure 1 my present improvement in side elevationin connection with a lastingmachine of the character represented in myl Patent No. 361,363. In Fig. 2 I`have shown in vertical section on the line .c x of Fig. 1 a part of the mechanism-there represented. At

Figs. 3 and 4I have vrepresented in vertical section on the line y y of Fig. 1 the construction and operation of ak certain other portion of that machine in which my present invenhave shown also, on anY enlarged'scale, details of the device, as lwill be afterward set forth.

In lasting-machines as'heretofore construct-A ed, wherein the edges of the upper areseized and stretched upwardlyby overhanging pinchers prior to beingkfolded in upon/the last byv heel, toe, and side lasting devices, it has been usual to providethese pinchers or grippers at suitable intervals entirely around the edge of the upper to be'lasted. I have discovered,

however, thatwhen this is done there is atendency of the stock, especially in the' shank, toy

be held too tightly byfthe pinchers, and consequently to prevent the shoe from being well lasted where the'upper is thus held. By my present improvement I may'use pinchers orl grippers around those portions ofthe upper where a tight holding is desirable, while at the other portions, and especially on eitherside of the shank of the upper, I substitute in the place of 'such pinchers or grippers a spring extending down sufciently so that the upper may be caught between it and the side-lasting device, and thus be gradually relaxed bythe it, at the shank.

slipor yield of the springv as the` side-lasting, device brings a strain to bear upon it. l 'Y Referring to the drawings, [have thererep.. A resented an ov'erhangingidevice embodying my' present improvements adapted to co-operate 55 ,with thelasting devices in the operationof lasting a boot or shoe. In this device I have represented pinchers ofthe lazy-tongs form, A with operatingrods and two plates adapted to ybe brought together to close the pinchers an'do tor bel separated to open them. 'I- provide slots b in the lower plate, B, in which the pinchers n Y are supported, wherebylI am enabled-to adjust them inwardly or outwardly, and thus give te the machine a capacity for lasting'a wider 65` range of shoes. This construction is best shown f f `at Fig. 6. lI have also mounted in the lsame plate, B,a spring, or, more properly, a pair y Y of springs, extending downwardly to a lengthr p sufcientto meettheedge'of the upper andvto 7o ghold it'with a yielding grip againstthe'inwar'd pressure ofthe side-lasting devices. This spring is represented at C in the drawings, and I pre,I y

fer to construct it of steel'aud of substantially l' the form there shown, although it is obvious 75 that'the two springs, lone for each side, need not necessarily be formed of one and the same picceof metal. A I tindin practice that by the use of this spring, whichk furnishes a yielding grip ofthe upper, instead ofpinchers withan V8o unyielding or rigid'grip, I obtain a slipping or gradual releasing effect, which greatly improves the character of the nished work, especially when applied, as Ihave represented A third feature of my'present improvement is in the improved device for raising andlowering the upper plate relatively to the lower one, and also for raisingand lowering the e`ntire gripping attachment inthe operationfof 9.01 the machine. It has heretofore been attempted y to perl'ormthis operation by means of three screw-rods, two being screw-threadedinz-the lower plate and connected by means of a gear-K ing with a single operating-Wheelffor opening 9e and closing the pinchers and the third screwA threaded in the upper plate and providedwith aseparate operating-wheel for raising and l'owering the pinchers. By my present improve-` ment I greatly simplify this apparatus by dis-Y yroo,

pensing with all screw -threads and screwthreaded portions, and'by substituting a single rod for the three previously described l obtain an apparatus whichl is also much quicker and easier in its operation.

I provide a hollow post, D, attached to the lower plate, B, and passing upwardly through the plate A. Within this post (see Fig. 2) is a sliding rod, E, or presser-foot, and above it a ca1nlever, F,'acting upon the head of the sliding rod. By pressing this cam-lever down I can raise the gripping attachments rapidly and by a single motion, the whole sliding upwardly upon the rod, which is connected at its lower end to a downhold-plate, K, of ordinary construction, asshown. Furthermore,for moving the plates A and B together and apart to operate the pinchers, Iprovide a two-part circular `wedgecam. (Best shown at Fig. 5.) The upper portion of this wedge-cam G is secured to the hollow post D, which it surrounds. The lower portion, H, of the wedge-cam also surrounds the post, but is left to turn loosely about it upon the upper face of the plate A, and is provided with a suitable operating-handle for turning it. By turning this portion H of the wedgecam in'either direction I am ena bled quickly and by a single motion to separate or bring together the'plates A B to open or'close the pinchers.

I am aware that springpinchers have here tofore been employed in lasting-machines; but this feature is not embodied in my present invention, because, as before stated, by the use of the spring, as -herein described and shown, I am enabled to do away with pinchers altogether in lasting those portions of the upper where it is not desirable that pinchers should be employed.

I am also aware that in lasting-machines heretofore constructed-such as are shown, for example, in Letters Patent No. 142,657 to Trask and Wheeler-a springrubber has been attached to the sidedasting plate for the purpose of pressing the upper up to or against the last. My present invention diers from these in that I employ a spring projecting downwardly on the inner side of the upper, or that next the last, instead of on the outer side, as in the machine mentioned. With a spring constructed and arranged according to my present invention the upper when being lasted is seized between the spring on the one side and the side-lasting devices on the other side, and is thereby lasted with a yielding grip--a feature notfound, so far as I am aware, in any contrivance heretofore known.

I claiml. In a lasting-machine, the combination, with inwardlysliding lasting-plates, of springs, substantially as described, extending downwardly on the inner side and below the edge of the upper to be lasted and'adapted to hold the same with a yielding grip against the inward pressure of the slides, all substantially as set forth.

2. In alasting-machine having an overhanging gripping attachment, the improved device for raising and lowering the same, consisting of the hollow post D, the rod E, working therein and bearing at its lower portion upon a downhold, and the camlever F, all substan tially as set forth.

3. In a lasting-machine having an overhanging gripping attachment of the character described, the combination, with the upper and lower plates, A B, of the post D, secured to the lower plate and passing through the upper plate, and the wedge-cam G H, formed in two parts, one fixed to the post and the other adapted to turn around thesame upon the plate A, all substantially as set forth.

In testimony whereof I have hereunto sub-V scribed rny name this 22d day of November, A. D. 1887.

CHARLES H. KELLEY.

Witnesses:

ALEX. l?. BRowNE, J. HENRY TAYLOR.

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